354 E8257D/67D, E8663D PSG Signal Generators Service Guide
Assembly Replacement
A32 10 MHz Crystal Oscillator
A32 10 MHz Crystal Oscillator
Tools Required
— T–10 driver
— needle–nose pliers
Removal Procedure
Refer to Figure 3-55 for this procedure.
1. Disconnect the power cord.
2. Remove the covers from the signal generator. Refer to “Outer Instrument
Cover” on page 258 and “Inner Instrument Cover” on page 260.
3. Position the signal generator with the Rear Panel facing you.
4. Using the needle–nose pliers, disconnect the W47 flexible cable (A31
Motherboard J1041) from A32J2.
5. Using the needle–nose pliers, disconnect the W48 flexible cable (10 MHz
EFC) from A32J1 (Option UNR/UNX only).
6. Disconnect the A32W1 bias cable from the A21 Rear Panel Interface P2.
7. Using the T–10 driver, remove the three screws (1) that attach the A32
10 MHz Crystal Oscillator to the rear panel.
8. Remove the A32 10 MHz Crystal Oscillator.
Replacement Procedure
1. Reverse the order of the removal procedure.
2. Torque all T–10 screws to 9 in–lbs.
3. Perform the post–repair adjustments and performance tests that pertain
to this removal procedure.
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